Contents APRIL 2015 Bristol Naturalist News Photo © David Davies Discover Your Natural World Bristol Naturalists’ Society BULLETIN NO. 539 APRIL 2015 BULLETIN NO. 539 APRIL 2015 Bristol Naturalists’ Society Discover Your Natural World Registered Charity No: 235494 www.bristolnats.org.uk HON. PRESIDENT : David Hill, BSc (Sheff), DPhil (Oxon). HON. CHAIRMAN: Roger Steer, Winpenny Cottage, Bagstone, Wotton-u-Edge, GL12 8BD roger@winpenny.org.uk 01454 294371 HON. PROCEEDINGS EDITOR: Mr. Richard Bland, 18a Knoll Hill, BS9 1RA richard.bland123@btinternet.com 0117 9681061 HON. SEC.: Lesley Cox 07786 437 528 fledglingnat@icloud.com HON. M EM'SHIP SEC.: Mrs. Margaret Fay 81 Cumberland Rd., BS1 6UG. 0117 921 4280 membership@bristolnats.org.uk HON. TREASURER: Mr Stephen Fay, 81 Cumberland Rd., BS1 6UG. 0117 921 4280 treasurer@bristolnats.org.uk CONTENTS 3 Diary of Events In praise of Richard Bland 4 Society Walk Brian Frost at 80 5 Chairman’s Notes Phenology 6 ORNITHOLOGY SECTION Fieldwork, Recent News, Pigeons and street lamp (re-)design 8 LIBRARY Reading Group BULLETIN DISTRIBUTION Hand deliveries save about £800 a year, so help is much appreciated. Offers please to: HON. CIRCULATION SEC.: Brian Frost, 60 Purdy Court, New Station Rd, Fishponds, Bristol, BS16 3RT. 0117 9651242. Brnf3335@aol.com He will be pleased to supply further details. Also contact him about problems with (non-)delivery. BULLETIN COPY DEADLINE: 7th of month before publication to the editor: David B Davies, 9 INVERTEBRATE SECTION Notes for April 10 BOTANY SECTION Botanical notes: Arnos Vale – report & next mtg; Edwin Wheeler; Margaret Webster’s buttercup; Records & ‘Wanted’; Oliver Rackham Provisional future meetings The Summer House, 51a Dial Hill Rd., Clevedon, BS21 7EW. 01275 873167 david.bd2@btinternet.com 13 GEOLOGY SECTION Grants: The society can make grants of up to Future meetings £500 for projects that meet the Society’s charitable aims of promoting research and education in natural history & its conservation in the Bristol region. Grant information and an application form can be downloaded from: http://bns.myspecies.info/search/site/Grants Completed applications can be emailed but only to: BNS-Grant-Application@virginmedia.com Postal applications to: BNS Grant Applications, 20 Harcourt Hill, Redland, Bristol BS6 7RB. Health & Safety on walks: Members participate at their own risk. They are responsible for being properly clothed and shod. Dogs may only be brought on a walk with prior agreement of the leader. 14 MAMMAL SECTION Presidential vacancy 14 MISCELLANY Avon Gorge & Downs Wildlife Project Botanic Garden BNHC needs expert volunteers 16 Society SUBSCRIPTIONS Cover picture: 4th March, on a garden fence. Mark Pajak writes: Nursery Web Spider Bristol Naturalists’ Society (Pisaura mirabilis). These spiders make a nest out of web in World long grass and protect it until Discover Your Natural their young emerge. Registered Charity No: 235494 www.bristolnats.org.uk 2 Diary of events Back to contents Council usually meets on the first Wednesday of each month. Any member can attend, but must give advance notice if wishing to speak. Visitors & guests are very welcome at any of our meetings. If contact details are given, please contact the leader beforehand, and make yourself known on arrival. We hope that you will enjoy the meeting, and consider joining the Society. To find out how to join, visit http://bns.myspecies.info and click on membership. APRIL 2015 Thu 2 Walk: Ham and Berkeley Sat 11 Walk: Blaise Woods Wed 29 Walk: Leigh Woods Sun 19 Dockside Spider Survey Sun 26 150th Anniversary Trip to Leigh Woods Sun 26 Prior’s Wood, Portbury Society Ornithology Ornithology Invertebrate Invertebrate Botany OTHER EVENTS OF INTEREST Wed 1 Apr. Family animal sing-along (Family event) Fri-Mon 3-6 Apr. Easter Sculpture Festival Sun 19 Apr. Early birds and bacon butties Fri/Sat 24/25 Apr. Birdsong on the Downs (Course) 25 Apr-6 May Tour of Sicily Sun 26 Apr. Brilliant birds family walk Gorge & Downs 14:00 page 14 Botanic Garden page 15 Gorge & Downs 06:00 page 14 Gorge & Downs page 14 Botanic Garden page 15 Gorge & Downs 08:00 page 14 10:00 10:00 18:30 13:00 14:00 11:00 page 4 page 6 page 6 page 9 page 9 page 10 RICHARDTHE LION-HEARTED O ur good friend Wikipedia (whatever happened to the Encyclopædia Britannica?) tells us that the Germanic first, or given, name Richard derives from German, French and English and translates as “powerful leader”. There is no question that our own Richard Bland had to be a very powerful and, more importantly, an intelligent, able, steadfast and skilled leader to prepare, deliver and oversee our Celebration of Nature Day and make it the outstanding success that it undoubtedly was. As Organiser, he had to withstand the pressures of differing organisations’ requirements, the varying efficiency of those with whom he dealt and survive the ’help’ he received from us! Through it all, he negotiated, encouraged, organised and occasionally even ignored as necessary, in order to arrive at the desired goal in a way that only someone with his brilliance, experience and skill could. We owe Richard an enormous vote of thanks for the huge amount of work that he put into the project to make it a remarkable success: - for those of us who were involved in the preparation in some miniscule way, for those of us on duty on the day, for those of us who came to visit and for those of us who learnt something along the way. All together now, THREE CHEERS FOR RLB, hip, hip …… Thanks Richard. The benefits emanating from the Celebration of Nature will soon be manifest and will extend well into the future, bringing significant and important nuances into focus. We hope you enjoyed the event as much as we all did. Your hard work was definitely worth it for us; we hope it was for you, too. Lnc. 3 SOCIETY ITEMS Back to contents / Back to Diary Society Mid-week Walk Thursday 2nd April 2015. The Salutation Inn, Ham, Berkeley, Glos. About 3.5 miles. This pub won a 2014 CAMRA Pub of the Year Award and was a Food & Farming Awards finalist. Meet at 10am at the Salutation Inn, GL13 9QH / ST680984. This whitewashed Pub in the middle of a small village is surprisingly difficult to notice. Once you realise that it is in the middle of the village, stands at right angles to the road and has a car park by the side, it appears as if by magic. The first part of the walk is along the Little Avon River and then we climb Whitcliff Park to the Deer Park where we will see a shy and retiring herd of Fallow Deer and even one White Hart. On the skyline are stormshattered trees and some recumbent giants. The area is on the Severn flood-plain and the amount of water is unpredictable but regular walkers will know that the leader carries out a full inspection of the route shortly beforehand so difficulties can be overcome by planning. It is advisable to bring ‘wellies’ with you but almost certainly ordinary good footwear should be adequate. We expect to return to the venue by 1pm and find a warm welcome, a log fire and good refreshments waiting for us. Tony Smith, telephone: 0117 965 6566 mobile 07941 366 071 email zikadens@blueyonder.co.uk (Next walk: Thursday 7th May) Brian Frost at 80 th The colour cover of the March Bulletin was contributed by Brian, who celebrated his 80 birthday on the 3rd of the month; what your editor failed to mention was that he not only contributed the pictures but paid himself the considerable cost of having the cover in colour. Apologies (and thanks!) to him, and thanks to Richard Bland for the following note: I don’t think many people realised that Brian Frost had paid for the colour cover of the last bulletin to celebrate his 80th birthday. He can’t get about much these days, and many people won’t know him well, but he has been central to the BNS for the past sixty years, a record which is unlikely ever to be broken. He organises the monthly distribution of the bulletins, a job that combines being very tedious with being absolutely essential, and he does it with a meticulous accuracy that I couldn’t begin to achieve. People like him probably cannot comprehend how slipshod individuals such as I am can cope with their lives, but he is very long suffering, and forgiving, and it is valuable to know that he will usually have the answer to the most obscure detail. We are all immensely grateful to his contribution over such a long period. 4 Back to contents / Back to Diary CHAIRMAN’S NOTES I am writing this the day after our ‘Celebration’. I hope that those who attended, enjoyed it. I also hope that you thought, as I did, that we had made a ‘suitable’ contribution to the “Bristol, Green Capital” events. For those who were unable to come along, let me explain that we had stands from the RSPB, National Trust, and many local wildlife groups, both small and large like the AWT. In my view, the extra benefit was that these groups could meet each other, and they certainly did. Conversations went on all over the room. Ideas were exchanged and new alliances forged. This sort of exchange is impossible in the melee of the Festival of Nature, so we were pleased to provide this venue. I’d like to take this opportunity to thank all of those (and there were many) who made a contribution. Embedded in the Celebration, we held our AGM. I am pleased to say that this arrangement, despite misgivings, worked well. We elected a new Council but, sadly, with a few vacancies still unfilled. Proceedings Editor – Richard Bland has stood down from this post, and we seek a person to take on the running of our major publication. Richard has offered to provide information, and guidance as needed. Publicity Secretary – The lack of this officer was keenly felt during the run-up to the Celebration. We need someone with some knowledge and experience in this area, who could help us promote the Society over the varied media that exist today. Mammal Section Representative – Two stalwarts of this group now find themselves unable to give the time that they did to this section, so we seek two, preferably three, people who could take it forward. We need all of these NOW. And besides them … Treasurer - Steve Fay has earlier indicated, and now announced at the AGM, that he intends to stand down as Treasurer in the Summer of 2016. He has offered to help anyone willing to take on this post, and to be there as support during account preparation. The earlier we can find a new Treasurer, the longer the handover and more painless it can be. Roger Steer PHENOLOGY February was the coldest February since 1990, and almost four degrees colder than last year. It was well below the recent ten, twenty and thirty year averages, and below the long term average since 1853. There were ten frost nights, eight of them cold enough to cover ponds with ice. The whole winter however was totally average in both temperature and rainfall, because a warm December was balanced by a cold February. As a result Hazel catkins and Snowdrops appeared spot on the average date for the past fifteen years, and then everything was put on hold, and Celandine and Frogspawn were two weeks late, and there are as I write at the end of February about eleven events which have normally happened by now, but are still to come this year. So spring is starting late - but of course can very easily catch up if the weather is right. Richard Bland 5 ORNITHOLOGY SECTION PRESIDENT:- Mike Johnson 0117 953 2545 michael753@aol.com HON SEC.:- Lesley Cox 07786 437528 fledglingnat@icloud.com Back to contents / Back to Diary FIELD MEETINGS Field meetings are open to non-members; just turn up at the start point and make the leader aware of your presence so that he/she may ensure that you enjoy the meeting to its fullest. A WALK THROUGH BLAISE WOODS Leader: Richard Bland Saturday 11 April 10.00am Meet at 10.00 at the Combe Bridge carpark in Combe Dingle at ST 5575 7729. (I gave an 8 figure grid ref because if you google Get a grid and type this number in, it brings up a map with the exact position shown to within ten metres). The walk will last two hours, and is uphill on a good path until we turn around and come back. We will look and listen to the birds, admire the trees, and if we are wise bring the wonderful article in the 2011 Nature in Avon describing the geology of the walk, which starts 360 million years ago. Suitable for newcomers to bird watching. A WALK THROUGH LEIGH WOODS Leader: Richard Bland Wednesday 29 April 6.30pm Meet at the North Road entrance at ST5551 7300 at 6.30 for a two hour walk through the National Trust Reserve. Bird song is close to its maximum at this point in the year, and most migrants should be in. We might find the Marsh Tit which is well established there. The track is rugged in parts, and can be muddy. We will walk out to the tip of Leigh Camp, overlooking the Avon and apart from the birds we should see Green hellebore, ancient veteran Oaks and small-leaved lime, and admire the impact that grazing by a small herd has made in the past few years FIELDWORK Garden bird watch records. These should be sent to me, preferably electronically as soon as possible after the end of March so that I can get a report out rapidly. Richard Bland 18a Knoll Hill, BS9 1RA richard.bland123@btinternet.com RECENT BIRD NEWS February Most of the notable birds in February were long staying winter visitors such as Chew's Great Northern Diver, Great White Egret, Scaup and the 2 (male and female but separate) Red-breasted Mergansers. One of the last, the drake, is invariably paired with a female Goosander and on the rare occasions he has been seen near the female he studiously ignores her. The two species breed along the same rivers in some parts of their range so might this drake merganser have been mixed up with a Goosander brood and imprinted on the wrong species? The female merganser seems to consort with small groups of Goosander in other parts of the lake. 6 Green-winged Teals featured again with the Aust bird reported again on 21st and another on the Axe Estuary on 15th. Blagdon's Black-necked Grebe began to show signs of spring finery by the end of the month. More signs of spring were provided by the Mediterranean Gull passage at Chew where a record 14 were in the roost on 13th. We still don't do anything like as well for this species as some nearby areas where three figure counts are now routine. Ferrybridge/Portland Harbour recently topped a thousand! A Whimbrel reported at Sand Point on 28th would be too early for a long distance migrant but tiny numbers do winter around some of our coast so a wintering bird on the move is more plausible. Bramblings have been very scarce this winter - there was one at Abbots Leigh on 10th but I don't know of any others. Finally there were two reports of large flocks (4050) of Mistle Thrushes in fields - much more Fieldfare-like behaviour, especially in winter. It would be useful if the observers could provide some kind of evidence to back up these claims, as in their way they are as unusual as last month's wintering Reed Warbler! John Martin Back to contents / Back to Diary Unusual behaviour by Pigeons leads to redesign of street lamps. t has been reported in the journal, ‘Electrical Equipment Design and Nature’, 2014, part 7, that a new and 75% more efficient design of street lamp with a minimal light pollution glare factor from a well-known electrical manufacturers in Lancashire had to be slightly but significantly altered when it failed to respond as required at dusk and dawn. People complained in the trial areas, Preston, Blackburn, Burnley, Bury, Rochdale and Wigan that the lamps often would not come on at dusk but would light up soon after dawn. Mr John Tremble, 42, the head of the design team initially admitted in November 2013 that although the tests carried out on all the components of the automatic system proved them 100% reliable, when installed by local authorities in streets and lanes around the backs of peoples’ properties they lost control. Mr Oswald Blenkinsop a resident in one of the trial areas was most vociferous in his condemnation of the waste of local authority ratepayers’ Council Tax said, ‘It was like the birds were switching off the lights when going to rest. They don’t read in bed like us humans do!’ It was thought that wildlife might have something to do with the problem and birds were cited but it wasn’t until local unmarried mother of seven and keen bird-watcher, Sue-Mary Strickland, 47, trained her binoculars from the top back bedroom window of her council house on Mavis Street, Ince-in-Markerfield, Wigan, on the nearest new street lamp that she noticed that individual pigeons settled down on the flat top surface and covered the projecting hemispherical photometer at quite erratic times during the day. Her report, recorded in the journal, ‘West Lancashire Nature’, Summer, 2014, prompted thousands of other enthusiasts to focus their cameras and binoculars on this behaviour. It remained a mystery for only another few days after the publication of the article, when local GP Dr Reginald Ormerod, 97, stated on twitter that the hemispherical design, mottled off-white colour, exact dimensions and central disposition of the photometer on the top of the lamp were acting as a trigger to both male and female pigeon-pairs to brood the object as an egg, so darkening the photometer in daylight and causing its mechanism to switch on the light. At a stroke the problem was identified and a simple rectilinear redesign of the shape of the transparent photometer cover solved the problem. Tony Smith I 7 LIBRARY Back to contents / Back to Diary HON. LIBRARIAN: Jim Webster jim.bnslibrarian@gmail.com. BNS Library at Bristol City Museum & Art Gallery, BS8 1RL. Open: Wed. 1.15pm-2.15pm, Sat. 10.15am-12.15pm. Committee member on duty: 0117 922 3651 (library opening hours). FROM THE ARCHIVES BNS Proceedings becoming available online Some months ago Council signed an agreement with the Biodiversity Heritage Library that their participating organisations could scan copies of our Proceedings as held by them and make them freely available to the public (including BNS members). There are only three restrictions. BNS retains commercial rights; and Any user should acknowledge the source of the material; and There is a moratorium on digitisation until two years after publication. Direct access to the Society’s digitised Proceedings through an index of parts is available at http://biodiversitylibrary.org/bibliography/98898#/summary (or Google Biodiversity Heritage Library and use the website search). At the time of writing the digitisation is still progressing but most parts from 1866 to 1995 are already available. These can (for instance) be downloaded as searchable PDF files or even read out to you online in the voice of an American lady. As a result, the Library can now follow the policy agreed by Council that no more than 10 copies need be retained of any part of the Proceedings. It is quite a surprise that we have so many spare copies of Proceedings issued as far back as the late 1860’s when the format was rather like the Bulletin is today. On the other hand some years have been out of print for a long time. The 1905 volume with the photographs and overlays of the geological sequence exposed in the Avon Gorge is one. We can still make up substantial sets of the printed volumes for members who apply, and may be able to fill gaps in members’ collections. Anyone with a reasonable need to draw on the Society’s stock of back copies of the Proceedings should apply to the Library Committee through the Secretary (Clive Lovatt) or the Librarian (Jim Webster) or Chair (Richard Bland). Clive Lovatt, 8 March 2015 READING GROUP / BOOK CLUB The Reading Group welcomes new members Contact: Frances Thompson 0117 930 9974 francesthompson5@gmail.com The reading group welcomes new members so please contact as above to find out about the book(s) we are currently reading and the date and place for the next evening meetings. 8 INVERTEBRATE SECTION PRESIDENT: Mark Pajak markpajak.spider@gmail.com SECRETARY: Tony Smith 0117 965 6566 zikadens@blueyonder.co.uk Back to contents / Back to Diary FIELD MEETINGS DOCKSIDE SPIDER SURVEY Leader: Mark Pajak Sunday 19th April 1pm Meet at MShed at 1pm. We will be examining the Bristol Harbourside from the M Shed to Hotwells for signs of synanthropic* and water loving spider life. This will involve trialling mobile technology to log data on web types and position in an effort to develop new methods in mobile recording (bring a 3G phone if you have one!). We may also stop off for refreshments as we take the circular route around the harbourside. *synanthropic: Synanthropes are animals, often (but not necessarily) considered pests, which are not domesticated but live near and benefit from humans and their dwellings. ANNIVERSARY TRIP TO LEIGH WOODS Leaders: Ray Barnett and Mark Pajak Sunday 26th April 2pm Meet at 2pm North Road entrance to Leigh Woods. 150 years after the very first Entomological Section field meeting took place (April 24 1865), We will be following in our predecessors’ footsteps for a trip to Leigh Woods. INVERTEBRATE NOTES FOR APRIL 2015 T he day of the BNS ‘Celebration’ event (7 March) neatly coincided with one of the sunniest and warmest days of the year so far and hence bumble and honey bees and hoverflies were all on the wing heralding the arrival of spring in this European Green Capital year. Sadly news on the condition of our native insect fauna has not been so sunny recently. In February, Natural England (in collaboration with Buglife) published two reports from their ‘Species Status Project’, one on the current status of leaf beetles and the other on stoneflies. Leaf beetles (the family Chrysomelidae) are well represented in our area especially on calcareous grassland where you can often find in summer the highly metallic and reflective species such as the bright green Cryptocephalus aureolus. However this report in summary states: of the 283 species in the UK, 3 have become extinct in Britain in the last 100 years, 7 are classified as critically endangered and possibly already extinct in Britain (as they have not been seen since 1950) and 35 are placed on the new red list and considered either ‘critically endangered’, ‘endangered’ or ‘vulnerable’, and under threat of becoming extinct in Britain in the near future. With stoneflies (Order Plecoptera) of the 34 British species, one is now extinct, one is vulnerable to extinction, and another now joins the red list as a critically endangered species. You may have come across stoneflies whenever near water courses (of which of course our region is well served) as they have aquatic larvae, but even if you recognised them for what they are did you realise there are so many species in this country? Plecoptera is one of those insect groups which has never been particularly popular with amateur (and even professional) entomologists so why not choose to study them in the Bristol region and help us discover how many species we have? Their identification and mapping can also be extremely useful in monitoring water borne pollution as the larvae are very sensitive to the water quality. Ray Barnett 07/03/15 9 BOTANY SECTION PRESIDENT:- Vacant HON. SEC:- Clive Lovatt 07 851 433 920 (clivemlovatt@gmail.com) Back to contents / Back to Diary FIELD MEETINGS – Discovering the wild plants of the Bristol Region Field meetings are mainly held from April to September, at various times and days of the week. In many cases we will be recording the plants towards the Botanical Society of Britain and Ireland’s planned “Atlas 2020”. At the same time, inspired by Bristol becoming the Green capital of Europe for 2015, we will be visiting a number of Bristol’s green spaces. All meetings will afford an opportunity for extending health, friendship and recreation (as the author of the Flora of Bristol put it a century ago). Following the motto above, there will be plenty of opportunity for learning plants. A number of meetings will be jointly held with the Somerset Rare Plants Group and other local groups. Send me an email with BNS Botany in the subject line if you would like to be on a mailing list about BNS Botany meetings (advance notices, reports etc). PRIOR’S WOOD, PORTBURY Clive Lovatt and Liz McDonnell Sunday 26 April 11.00am Meet at 11am at Portbury below Prior’s Wood on Caswell Lane where the footpaths climb up to the woods. There is limited parking at the meeting place at ST497751 but plenty of roadside parking in Portbury. It will be an ‘explore and record’ meeting. Prior’s Wood is owned and managed by Avon Wildlife Trust. The ground flora and woodland structure look quite varied as a result of past management. Bluebells carpet the woods in places and it should be a spectacular sight at the time of our visit. There is even a 20 minute video of a walk in season on YouTube! Herb Paris and Small-leaved Lime occur. The woods have some muddy pathways and slopes so good footwear is essential. If you wish to stay for the afternoon, please bring a packed lunch. For those that will, there may be an opportunity after the meeting to see Small-flowered Buttercup Ranunculus parviflorus and any remaining Early Meadow-grass Poa infirma, at Gordano Services. Coming up in May (provisional) Troopers Hill. Monday 4 May 2pm Arnos Vale – follow-up from indoor meeting. Possibly Sunday 17 May afternoon. Kings Weston and Penpole Point. Date and time to be confirmed. Leigh Woods – plants of acid soils. Thursday 28 May 7pm 10 Back to contents / Back to Diary BOTANICAL NOTES Indoor meeting report – Monday 23 February 2015 – ARNOS VALE CEMETERY – An Urban Nature Reserve We had a good audience of two dozen for Mary Wood’s charming presentation which as well as illustrating the efforts made in rejuvenating the site, placed it in the cultural landscape. Was it not inevitable that a version of Dracula was partly filmed there should be credited to Highgate Cemetery? Mary described the variety of gravestones and monuments and how the floral motifs on the stones often mirrored the plants to be found, planted or wild, on the site. See the May Bulletin for details of a follow-up evening field meeting. Edwin Wheeler (1831-1909) In the last Bulletin there was a query from David Clarke for further details of a deceased BNS member who had resided in Clifton, Edwin Wheeler, and hopefully a photograph. Clarke’s interest in Wheeler grew from his discovery of an album of fungi in Carlisle Museum. I was able to provide him with some information, but not a likeness. White gives a brief account of him as part of his History of Bristol Botany – Wheeler was well respected as a modest and unselfish naturalist and collector and illustrator in water-colour, and he used to make presents of albums of drawings. There are apparently some 2,500 of his paintings of fungi in the Natural History Museum and more (specifically from Somerset) at Kew. His vascular plant herbarium ended up at Kew as well. A homeopathic chemist on the Triangle, close to Bristol Museum, the professional motto on his letterhead was “Wheeler’s invaluable remedies should be in every household”. As White said, “The story of Mr Wheeler’s life, should it be written in detail...would certainly prove to be deeply interesting and suggestive”. Margaret Webster’s six year old annual buttercup In a short note in the January 2015 edition of BSBI News illustrated by six of her photographs, Margaret Webster, one of our Botanical Committee, describes how in 2008, finding seedlings of an unknown buttercup on bare ground on a mound in an amenity area immediately south of Pill, she grew it on to find what it might be. When it flowered, it proved to be Hairy Buttercup, Ranunculus sardous, something with just three records in the Flora of the Bristol Region and none between 1987 and publication (2000). The flowering plant is photographed and its flowers, petals and sepals are compared with those of the superficially similar Bulbous Buttercup. Although said to be an annual, Margaret found that the plant survived and flowered and indeed continues to do so. She hasn’t been able to propagate it by seed – perhaps it is out-breeding and needs to be pollinated by another individual. Furthermore, in the autumn, shoots develop in the axils of the flowering stems and will develop roots rather in the manner of a creeping buttercup. Margaret has asked the BSBI botanists for comment. We shall wait and see, but I have been unable to trace any reference to it as other than annual. Reading White’s Flora, one sees even a hundred years ago, records of it as a casual (as here; the open ground became covered and it is no longer to be found on the mound) but also as a native at the back of salt marshes. Interestingly it was first found in Somerset by Dillenius in 1726 and therefore on the same excursion when he collected Somerset Hair 11 Grass, Koeleria vallesiana. The semi-perennial creeping habit may have fitted the buttercup to this brackish water habitat. Being known at Portishead and Ashton Fields (opposite the Cumberland Basin) could it have been a native in the sense of coming from locally buried seed half a mile away by the river? Look out for... I’m still looking out for Knotted Hedge-parsley, Torilis nodosa. I haven't found any more near Bristol despite driving around quite a bit. Twice though when I got out the car south of the Mendips, there it was! In April, look at the ephemeral communities of plants of verges and dry banks as the plants begin to flower and turn to seed. The plants are sometimes look-alikes – plants that are not quite what they seem at first glance to be. That smallleaved shy-flowering patch-forming chickweed may be the Lesser Chickweed, Stellaria pallida. The Whitlow-grass might not be the common one, Erophila verna. Plant records If you've found some interesting plants in the Bristol area, let me know. At the BNS ‘Celebration’ meeting yesterday I learnt of small managed sites near Bristol with Yellow Vetchling, Lathyrus aphaca, and Black Poplars with burred and less than upright trunks. Oliver Rackham RIP Oliver Rackham OBE died on 12 February 2015 at the age of 75. His name is almost synonymous with Ancient Woodlands, which through a combination of field work and scholarly research and a series of books he brought to the attention of naturalists and those with an interest in the countryside. Undoubtedly as a result, our stock of ancient woodlands is better understood and protected than would otherwise have been the case. His New Naturalist book, Woodlands, (2006), is in our lending Library. I had the pleasure of taking him around the National Trust part of Leigh Woods in 1980, when he remarked on the ‘Giraffe Pollards’ north of Stokeleigh Camp and the scarcity of old trees in Nightingale Valley, save for Oak pollards and some relict Small-leaved limes on the cliffs below North Road. This visit led to Rackham writing a short paper on Leigh Woods in 1982 and including a couple of pages on it in his History of the Countryside (1986). It was from his own studies that he was able to describe the Avon Gorge as “the best parallel in England to the Gorges of Crete”. The Economist, when reviewing this book, wrote that “it is full of answers to questions that others have not had the wit to ask”. Quite so, for looking at the enlarged first edition Ordnance Survey map of 1830 whilst drafting my own paper on the Historical Ecology of Leigh Woods (our Proceedings for 1987), I saw the woods were mapped with an angular southern boundary. Upon reaching the spot close to the Forestry Commission car park, there lay the ditch-bank boundary of the ancient coppice wood of the northern parish, which so far as I am aware, no-one had previously remarked upon. Clive Lovatt, Shirehampton, 8 March 2015 12 GEOLOGY SECTION Back to contents / Back to Diary PRESIDENT: Roger Steer roger@winpenny.org.uk 01454 294371 HON. SEC.: Richard Ashley ashleyrw@fsmail.net 01934 838850 JOINT FIELD TRIPS 2015 Due to their particular plans for the coming year, Bath Geological Society have informed us that they do not intend to take part in the joint field trips scheme of that BNS, WEGA and the Bath GS have run for the last few years. Elizabeth Devon has said that BNS members will still be welcome to take part in BGS trips. Meetings planned by Bath GS include: 13 June, William Smith Day, from Tucking Mill along Somerset Coal Canal 4 July, Black Mountain (western, Mynydd Du) traverse north of Swansea. Leader Dr Geraint Owen, Swansea University. 12 September, Aust Cliff. Leader Simon Carpenter For further details and booking please see Bath Geological Society website BNS Geology Field Meetings 2015 10 May 2015 (Sunday) (Date, time and meeting place to be confirmed in May Naturalists’ News and on geology.winpenny.org.uk) Coastal Section between Ogmore and Southerndown, Vale of Glamorgan. Leader: Stephen Howe. This meeting will examine the Carboniferous / Mesozoic unconformity and the Littoral Triassic and Liassic facies. Please contact Section Secretary if interested. 15 August, Coastal Section at Portishead (Section Walk) 26 September, Wiltshire Soils, Leader Jeremy Hollis 17 October, West Somerset Coast. Headland near Newquay, West Wales showing spectacular fold structures. The rock sequence of Pembrokeshire in South Wales is a classical one of British geology, with its varied Lower Palaeozoic sedimentary and volcanic rocks of Ordovician age. Taken by John Macrae while dolphin spotting. 13 MAMMAL SECTION Back to contents / Back to Diary PRESIDENT : VACANT SECRETARY: Hannah Broughton haaaaaaaan@hotmail.com M AMMAL RECORDER: Roger Symes boscobel@globalnet.co.uk Google Group. Please join the group by emailing a request to Hannah, or by emailing the group address: bristolmammalgroup@googlegroups.com, or apply for membership to be approved via: http://groups.google.com/group/bristolmammalgroup. In order to be a Group member you need a 'Google Account'. This is easy to create; you just need to register a password. The Google Group has a discussion forum; members post useful information or anything relevant they want to share. We hope all BNS members interested in mammals will become members of the Group and this will generate ideas for outings, talks and other initiatives. It would be Image ©Philippa Foster useful for members to share information on any skills they have which they would be willing to share with other members. MISCELLANY Back to contents / Back to Diary Avon Gorge & Downs Wildlife Project For further information contact Mandy Leivers on 0117 903 0609 or e-mail mleivers@bristolzoo.org.uk. Pre-booking essential for all events. Details of meeting points are given on booking. Wed 1 April. Family animal sing-along. For families with children aged 5–11. Musical family adventure on the Downs. Celebrate animals like bats, squirrels, foxes, and maybe a few exotic ones too. Poco Drom’s original songs for children and their adults will have you squeaking, hopping, wiggling, ROARING and laughing along! 2 – 3pm. £4 per child. Sun. 19 April. Early birds and bacon butties (with a veggie option). Join us for an early morning walk with bird expert Michael Johnson. After learning how to identify birds on the Downs, it’s back to the Zoo for a spot of breakfast. 6– 8.30am. Note the early start time! £10.50 (Includes a bacon bap or egg butty plus tea or coffee.) Fri. 24 and Sat. 25 April. Birdsong on the Downs (Course) Learn to identify birds from song with Ed Drewitt. Friday evening: multimedia introduction to birds you’re likely to see & hear. Next morning, Ed will lead you on a walk to identify birds ‘in the field’. Fri 7–9pm (Talk) and Sat 8–10am (Walk). £20. Sun. 26 April. Brilliant birds family walk. For families with children aged 5 - 11. Bird spotting walk on the Downs with Ed Drewitt. Find out about the birds that make this area their home, including the super speedy peregrine falcons (fastest birds in the world!) which nest in the Avon Gorge. 8-9.30am £4 per child 14 Back to contents / Back to Diary UNIVERSITY OF BRISTOL BOTANIC GARDEN The Holmes, Stoke Park Rd, Stoke Bishop, BS9 1JG. Booking: 0117 331 4906. www.bristol.ac.uk/botanic-garden REQUEST - Plants for Easter Weekend Sale. Chris Purvis is running a plant sale over Easter weekend and will be grateful for donations. Unusual varieties particularly welcome, also vegetable plants from allotmenteers. Plants need to be of decent size, labelled with name or colour at least. If you put your name on the label they can be returned if they don’t sell. For more details or offers of help please call Chris on 0117 924 5656 or email christinepurvis@hotmail.com with the title ‘Plant sale’ Fri. 3–Mon. 6 April, 10am–5pm. EASTER ART & SCULPTURE FESTIVAL Celtic giants, Flanders poppies, Mozart’s ‘Magic Flute’, bronzed Greek heroes, exotic tropical flowers and an original metal plant sculpture being created over the weekend … 25 April – 6 May 2015. Join the Curator on a Garden & Landscape Tour of Sicily This year’s study tour gives an introduction to the gardens, architecture and landscapes of Sicily. Spring flowers will be abundant and the temperature warm. We have been given access to some beautiful private gardens. Some garden tours will be hosted by the owner. AVON GARDENS TRUST The AGT programme for 2015 includes: Thu. 21 May. Coach tour to Hellens Manor and The Laskett Gardens, Herefordshire. The gardens at Hellens Manor are being developed along Tudor and Jacobean lines. The Laskett Gardens were created by Sir Roy Strong and his late wife, Julia Trevelyan Oman. Sat. 1 Aug. AGM and guided tour at Newton Park, Newton St Loe, Bath. 2015 is the tercentenary of the birth of Lancelot ‘Capability’ Brown who created the dramatic chain of lakes and cascades. The grounds were further improved by Apple Blossom – oil on board by Humphry Repton. http://www.avongardenstrust.org.uk/ Sheena Vallely Bristol Natural History Consortium invites BNS members to participate in the Festival of Nature Outreach Programme In so doing we will support the outreach goals, which include involvement of people and communities who are largely unaware of the nature and the environmental issues on their doorsteps. Apart from the Festival (13-14 June), events are planned to be spread between May and October, targeting groups whose focus of interest may be vague or quite specific. Funding and dates should be confirmed in March. BNS Members can get involved as leaders, leader’s support, mentor, walk guide, recorder etc. To find out more and to discover if this could be your scene call Lucy or Matt on 0117 317 8751 or email us lucy@bnhc.org.uk or matt@bnhc.org.uk 15 Back to contents / Back to Diary SUBSCRIPTIONS n 2014 the Society’s expenditure (excluding grants awarded) exceeded income by just over £1,000 and there is no reason to assume that the picture will be any different in 2015. This is after having managed to keep the figures in balance for quite a few years and is now mainly due to publication and distribution costs increasing, although there has been a slight fall in membership income. I The committee of the Society’s Council considered the matter at a recent meeting and discussed possible strategies: To simply continue as before and fund a few year’s deficits from accumulated reserves. This was rejected for various reasons – one consideration being that our reserves result from donations and legacies which should properly be dispensed as grants. To attempt to reduce costs. This was again rejected as it was considered that any diminution in the quality of benefits available to the membership would not be in the interests of the Society. This left the preferred option of increasing the membership subscriptions – which have remained the same for 5 years now. This was agreed in principle, subject to being put before the recent AGM where it was given general support. WITH EFFECT FROM 1ST OF JANUARY 2016 THE FOLLOWING REVISED ANNUAL SUBSCRIPTION RATES WILL APPLY; SINGLE MEMBERSHIP £25 ‘HOUSEHOLD’ (MEMBERS AT THE SAME ADDRESS) £35 The rates for students (£10) and the few ‘Corresponding’ members will remain unchanged. IMPORTANT The majority of the members kindly pay by Standing Order. This is of great administrative assistance but does mean that any changes have to be made by you yourselves contacting your bank. Can I please ask (and if you have a picture here of your Hon Treasurer on bended knees, you have an accurate picture) that you to make the necessary change before the end of the year? I will be putting out further reminders, but if you have any queries please contact me (details on the first page) I thank you in advance for your co-operation and hope you will continue to support the Society. 16
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